It sounds like you are getting money from investors without them getting anything in return, no security on their investment not even their money back as you said it would not be a loan, and you are not selling them shares, if that’s the case treat the money invested as if you were putting it into your business yourself so tag it to your directors loan account.
Normally investors invest their money in company shares getting their return via dividends from profits or a mix of dividends and share buy back, plus a say in how the profits are used as the company could use all the profits in other ways leaving nothing for dividends.
You really need an accountants advise.
In the mean time you could leave the investments untagged in Quickfile
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